This letterbook covers the period April-September 1895. Most of the correspondence is by Edison and Walter S. Mallory, vice-president of the company. The letters deal mainly with personnel matters, company financial obligations, building alterations, equipment, supplies, and sand orders. Some of the items pertain to operations and the expected reopening of the Ogden works. Other letters relate to a porosity experiment conducted with briquettes, a suggestion by Edison regarding the making of castings, and the threat of a machinists' strike. There are also letters discussing kinetophone litigation and Edison's appraisal of the electric light business in the United States. The spine is stamped "Letters." The book contains 702 numbered pages and an index. Approximately 10 percent of the book has been selected. Most of the handwritten letters are in very faint green ink and may be difficult to read.